Biscuit skate vs undulate ray

Raja straeleni compared with Raja undulata

Key Differences

• Biscuit skate is Near Threatened while undulate ray is Endangered.

Taxonomic Classification

Rank	Biscuit skate	undulate ray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Elasmobranchii	Elasmobranchii
Order same	Rajiformes (Rajiformes)	Rajiformes (Rajiformes)
Family same	Rajidae	Rajidae
Genus same	Raja	Raja
Species	Raja straeleni	Raja undulata

Evolutionary Relationship

Biscuit skate and undulate ray share a common ancestor at the Genus level: Raja.

Conservation Status

Biscuit skate

NT — Near Threatened

undulate ray

EN — Endangered

Physical Characteristics

Attribute	Biscuit skate	undulate ray
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Biscuit skate

undulate ray

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Found in Belgium. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Biscuit skate

The Biscuit skate (Raja straeleni) is a species in the genus Raja. It is currently classified as Near Threatened on the IUCN Red List.